Writing pen



arch 1 G. s. WALTER 2,033,164

WRITING PEN Filed April 8, 1935 Patented Mar. 10, 1936 UNITED STATESPATENT OFFICE 13 Claims.

This invention relates to pens, and particularly to a type of pens, inthe use of which, considerable pressure is frequently exerted on thewriting end thereof, as, for example, in the use of stylographic penswhich are used and are especially well adapted for making carbon copiesof original writings.

One object of the present invention is to provide a construction andarrangement whereby portions of the pen are protected against scoopingup dust, dirt, paper fibers and the like, which tend to clog the inkpassage and seriously interfere with the eflicient operation of the pen.

Another object of the invention is to provide a stiff non-spreading penpoint capable of receiving pressures suitable for producing carboncopies.

Another object of the invention is to provide a construction andarrangement wherein the pen point member is rigidly mounted in thenozzle portion of the pen, and wherein the discharge opening for the inkis positively and automatically determined.

A further object of the invention is to provide a structure whereinclogging of the ink within the pen is overcome and an efficient flow ofthe ink assured.

A still further object of the invention is to improve devices of thecharacter described in sundry details hereinafter referred to andparticularly pointed out in the appended claims.

An embodiment of the present invention is shown for illustrativepurposes in the accompanying drawing, in which:

Fig. 1 is an elevational view partly in section of a pen embodyingfeatures of the present invention;

Fig. 2 is an enlarged fragmentary longitudinal sectional elevationalview of the lower end portion of the structure illustrated in Fig. 1 andtaken substantially as indicated by the line 2-2 thereof;

Fig. 3 is a transverse sectional plan view taken as indicated by theline 3-3 of Fig. 2;

Fig. l is a further enlarged fragmentary sectional elevational view ofthe structure adjacent the lower end portion of Fig. 2;

Fig. 5 is a plan sectional view taken as indicated by the line 5-5 ofFig. 4;

Fig. 6 is an enlarged fragmentary sectional elevational view similar toFig. 4, and illustrating a slightly modified form of the structureembodied therein; and

Fig. 7 is a bottom plan sectional view taken as indicated by the line7-? of Fig. 6.

As illustrated, particularly in Figs. 1 to 5, inclusive, of the drawing,the present invention comprises a body portion, indicated as a whole bythe numeral ll, consisting of a hollow tubular barrel l2 having a bulbl3 formed of rubber or other suitable flexible and resilient materialpositioned in one end of the barrel l2, and a nozzle, indicated as aWhole by the numeral I4, positioned in the opposite end thereof, thesaid nozzle being shown, in the present instance, as comprising atapered portion l5 formed, preferably, of a suitable translucentmaterial, such, for example, as glass or the like and having a tubularshell or sleeve l6 positioned therein and extending beyond the outer endthereof, the said barrel l2 and nozzle l4 providing a container orreservoir I"! for maintaining a supply of ink within the devlce'forwriting purposes.

Removably mounted in the sleeve l6 and extending therethrough into theinterior of the body portion H is a tubular member, indicated as a wholeby the numeral l8, and provided'w'lth a plurality of annularly spacedlugs or enlarged portions l9 adapted to frictionally engage the innersurface of the sleeve IS in a manner to rigidly secure the tubularmember l8 therein and in spaced relation with respect thereto in'amanner to form an annular ink channel 2| communicating at its upper endwith the lower end of the reservoir H, the member l8 being also readilyremovable from the sleeve l6 for the purposes of cleaning. p

For preventing a filtering action of the ink and eliminating clogging atthe point where the reservoir I! empties into the channel 2|, thecross-sectional area of the channel is increased, the increasing of thearea of the channel being obtained, in the present instance,=byproviding the tubular member IS with a reduced outer diameter, indicatedat 22, adjacent the lower end 01' the reservoir I1.

Formed on the lower or outer end of the tubular member I8 is a laterallyextending annular flange portion, indicated as-a whole by the numeral23, the flange, in the present instance, extending outwardly in a mannerto overlie a portion of the outer end of the sleeve 16 to preventunintentional free flow of the ink, the flange 23 being providedadjacent its edge with a plurality of beveled portions 24 which may beof various lengths and with a plurality of lugs 25 between said beveledportions adapted to engage the adjacent end of the sleeve IS in a mannerto deflnitely and automatically position the flange 25 with respect tothe sleeve 16 and space the beveled portions 24 from the end of thesleeve 16 to provide a discharge outlet of suitable dimensions at andcommunicating with the ink channel 2|.

for passing the ink therefrom.

While the present illustrative embodiment of the invention disclosesthree bevel surfaces 24 and three lugs 25, it will be obvious that morefor positioning the flange 23 with respect to the end of the sleeve I6.

It will be noted that the tubular member I8 is provided with alongitudinally disposed air vent and filler opening 26 formed thereinand extending therethrough to permit of the admission of air into theinterior of the body portion II and reservoir I! to replace the inkremoved therefrom during the writing operation of the pen, and providingalso, an intake passage through which ink may be drawn into the penduring the filling operation by manipulation of the bulb Hi, the inkduring the filling operation being discharged from the upper or innerend 01 the opening 26 into the reservoir H.

In the embodiment illustrated in Figs. 6 and '7, a tubular member 18aisprovided with a laterally extending annular flange 23a' having asubstantiallyflat upper surface 23b, and adjacent the flange 23a is asleeve [6a having a plurality of annular beveled portions I61) and aplurality of lugs [60 positioned between the beveled portions andadapted to engage the upper surface 236 of the flange 23a for positivelyand definitely positioning the flange with respect to the sleeve [6a,and for maintaining the flange in properly spaced relation with respectto the beveled portions I612 for providing an outlet of suitabledimensions at and communicating with the discharge end of an ink channelZia.

It will be observed from the foregoing description that by reason of theoverlying relationship of the flange 23 with respect to the sleeve l6that the present arrangement protectsthe tip of the nozzle portion orelement against scooping up dust, dirt, paper fibers and the like, whichtend to clog the flow of theink, and that the invention also provides anon-spreading pen point suitable for pressures for producing carboncopies.

It will be observed also that the present invention provides a novelconstruction and arrangement whereby the outlet for the ink from thechannel 2| is positively and? automatically determined, and that byreason of the increased cross-sectional diameter of the ink channel 2|at the discharge end of the reservoir l1,- clogging of the ink withinthe pen is overcome and. an efficient flow of the ink is assured.

Obviously, the present invention is not limited to the preciseconstruction and arrangement shown and described as the same' may bevariously modified. Moreover, all of the features of the invention neednot be used conjointly' a-sthe same may be used to advantage invariously different combinations and sub-combinations.

What I claim as new and desire to secure by Letters Patent is:

1. In a fountain pen having a body portion comprising a hollow barreland nozzle to provide an ink reservoir in said body portion, thecombination of a tubular member rigidly positioned in said body portionand extending through said nozzle in spaced relation thereto to providean ink channel communicating with said reservoir, and a laterallyextending flange portion formed on the outer end of said tubular memberadjacent the discharge end of said ink channel and adapted to overlie aportion of the end of said nozzle. I

2.- In a fountain pen having a .body portion comprising a hollow barreland nozzle to provide an ink reservoir in saidbody portion, thecombination of a tubular member rigidly positioned in said body" portionand extending through said nozzle in spaced relation thereto to providean ink channel communicating with said reservoir, and a laterallyextending flange portion formed on the outer end of said tubular memberadjacent the discharge end of said ink channel and adapted to overlie aportion of the end of said nozzle in spaced relation thereto to providea discharge outlet for the ink from said channel.

3. In a fountain pen having a body portion comprising a hollow barreland nozzle to provide an ink reservoir in said body portion, thecombination of a tubular member rigidly positioned in said body portionand extending through said nozzle in spaced relation thereto to providean ink channel communicating with said reservoir,

a laterally extending flange portion formed on the outer end of saidtubular member adjacent the discharge end of said ink channel andadapted to overlie a portion of the end of 'said nozzle, and a spacinglug adjacent the discharge end of said channel. for spacing a portion ofsaid flange from the adjacent end of said nozzle to provide a dischargeoutlet for the ink from said channel.

4.- In a fountain pen having a body portion comprising a hollow barreland nozzle to provide an ink reservoir in said body portion, thecombination of a tubular member having a portion of reduced diameterintermediate its ends rigidly positioned in said body portion andextending through said nozzle in spaced relation thereto to provide anink channel of various cross-sectional area communicating with saidreservoir, a laterally extending annular flange portion formed on theouter end of said tubular member adjacent the discharge end of said inkchannel and adapted to overlie a portion of the end of said nozzle, anda plurality of spacing lugs adjacent the discharge end of said channelfor spacing a portion of said flange from the adjacent end of saidnozzle to provide a discharge outlet for the ink from said channel.

5. In a fountain pen having a body portion comprising a hollow barreland nozzle to provide an ink reservoir in said body portion, thecombination of a tubular member having a portion of reduced outerdiameter adjacent the lower end of said reservoir, said tubular memberbeing rigidly positioned in said body portion and extending through saidnozzle in spaced relation thereto to provide an ink channelcommunicating with said reservoir, a laterally extending annular flangeportion formed on the outer end of said tubular member adjacent thedischarge end of said ink channel and adapted to overlie a portion ofthe end of said nozzle, and a plurality of spacing lugs adjacent thedischarge end of said channel for spacing and positively positioningsaid flange with respect to the adjacent end of said nozzle to provide adischarge outlet for the ink from said channel.

6. In a fountain pen having a body portion comprising a hollow barreland nozzle to provide an ink reservoir in said body portion, thecombination of a tubular member having a portion of reduced outsidediameter adjacent the lower end of said reservoir, said tubular memberbeing rigidly and removably mounted in said nozzle and extending intosaid reservoir through said nozzle in spaced relation thereto to providean ink channel communicating with said reservoir, a laterally extendingannular flange portion formed on the outer end of said tubular memberadjacent the discharge end of said ink channel and adapted to overlie aportion of the end 01' said nozzle, and a plurality of annularly spacedlugs adjacent the discharge end of said channel for spacing a portion ofsaid flange from the adjacent end of said nozzle to provide a dischargeoutlet for the ink from said channel.

'7. In a fountain pen having a body portion comprising a hollow barreland nozzle providing an ink reservoir, the said nozzle having a tubularsleeve mounted therein and forming a part thereof, the combination of atubular member positioned in said sleeve, a plurality of spaced lugs onsaid member engageable with said sleeve for holding the member rigidlytherein and in spaced relation thereto to provide an ink channel ofgreater cross-sectional area at its upper end and communicating withsaid reservoir, a laterally extending annular flange portion on theouter end of said tubular member adjacent the discharge end of saidchannel and adapted to overlie a portion of the outer end of saidsleeve, and a plurality of lugs on said flange for spacing a portion ofthe flange from the adjacent end of said sleeve to provide a dischargeoutlet for the ink from said barrel.

8. In a fountain pen having a body portion comprising a hollow barreland nozzle providing an ink reservoir, said nozzle having a tubularsleeve mounted therein and forming a part thereof, the combination of atubular member positioned in said sleeve and body portion, a pluralityof spaced lugs on said member engageable with said sleeve for holdingthe member rigidly therein and in spaced relation thereto to provide anink channel of various cross-sectional area communicating with saidreservoir, said channel being of greatest cross-sectional area adjacentits juncture with the reservoir, a laterally extending annular flangeportion on the outer end of said tubular member adjacent the dischargeend of said channel and adapted to overlie a portion of the outer end ofsaid sleeve, and a plurality of annularly spaced lugs on said flangeengageable with said sleeve for spacing a portion of the flange from theadjacent end of the sleeve to provide a discharge outlet for the inkfrom said channel.

9. In a fountain pen having a body portion comprising a hollow barreland nozzle providing an ink reservoir, said nozzle having a tubularsleeve mounted therein and forming a part thereof, the combination of atubular member positioned in said sleeve and body portion and having aportion of reduced outer diameter adjacent the lower end of saidreservoir, a plurality of spaced lugs on said member engageable withsaid sleeve for holding the member rigidly therein and in spacedrelation thereto to provide an ink channel communicating with saidreservoir, 21. laterally extending annular flange portion on the outerend of said tubular member adjacent the discharge end of said channeland adapted to overlie a portion of the outer end of said sleeve, and aplurality of annularly spaced lugs on said flange adjacent the edgethereof and engageable with said sleeve for spacing a substantialportion of the flange from the adjacent end of the sleeve to provide adischarge outlet for the ink from said channel.

10. In a fountain pen having a body portion comprising a hollow barreland nozzle providing an ink reservoir, said nozzle having a tubularsleeve mounted therein and forming a part thereof, the combination of atubular member positioned in said sleeve, a plurality of spaced lugs onsaid member engageable with said sleeve for holding the member rigidlytherein and in spaced relation thereto to provide an ink channelcommunicating with said reservoir, a laterally extending annular flangeportion on the outer end of said tubular member adjacent the dischargeend of said channel and adapted to overlie a portion of the outer end ofsaid sleeve, a plurality of annular beveled portions adjacent the edgeof said flange, and a plurality of lugs on said flange between saidbeveled portions for spacing the beveled portions of the flange from theadjacent end of said sleeve to provide a discharge outlet for the inkfrom said barrel.

11. In a fountain pen having a body portion comprising a hollow barreland nozzle providing an ink reservoir, said nozzle having a tubularsleeve mounted therein and forming a part thereof, the combination of atubular member positioned in said sleeve, a plurality of spaced lugs onsaid member engageable with said sleeve for holding the member rigidlytherein and in spaced relation thereto to provide an ink channelcommunicating with said reservoir, a laterally extending annular flangeportion on the outer end of said tubular member adjacent the dischargeend of said channel and adapted to overlie a portion of the outer end ofsaid sleeve, and a plurality of lugs on said sleeve engageable with saidflange for spacing a substantial portion of the flange from the end ofsaid sleeve to provide a discharge outlet for the ink from said channel.

12. In a fountain pen having a body portion comprising a hollow barreland nozzle providing an ink reservoir, said nozzle having a tubularsleeve mounted therein and forming a part thereof, the combination of atubular member positioned in said sleeve, a plurality of spaced lugs onsaid member engageable with said sleeve for holding the member rigidlytherein and in spaced relation thereto to provide an ink channelcommunicating with said reservoir, a laterally extending annular flangeportion on the outer end of said tubular member adjacent the dischargeend of said channel and adapted to overlie a portion of the outer end ofsaid sleeve, a plurality of beveled portions adjacent the inner loweredge of said sleeve, and a plurality of lugs on said sleeve between saidbeveled portions and engageable with said flange for spacing the'flangefrom the beveled portions on the end of said sleeve to provide adischarge outlet for the ink from said channel.

13. In a fountain pen having a body portion comprising a hollow barreland nozzle providing an ink reservoir, said nozzle having a tubularsleeve mounted therein and forming a part thereof, the combination of atubular member posi-' tioned in said sleeve and body portion, aplurality of spaced lugs on said member engageable with said sleeve forholding the member rigidly within and in spaced relation thereto, saidsleeve and tubular member cooperating to form the walls of an annularink channel communicating with said reservoir, one of said channel wallsbeing inclined longitudinally to provide the ink channel with greatercross-sectional area at its receiving end than at the discharge endthereof, a laterally extending annular flange on the outer end of saidtubular member adjacent the discharge end of said channel and adapted tooverlie a portion of the outer end of said sleeve, and a plurality oflugs adjacent the discharge end of said channel for spacing said flangefrom the adjacent end of the sleeve to provide a discharge outlet forthe ink from the channel.

GEORGE s. WALTER.

